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学科主题: 物理化学
题名: Single-Atom Catalysts: A New Frontier in Heterogeneous Catalysis
作者: Yang, Xiao-Feng1;  Wang, Aiqin1;  Qiao, Botao1;  Li, Jun2;  Liu, Jingyue1, 3;  Zhang, Tao1
通讯作者: Jun Li ;  Jingyue Liu ;  张涛
刊名: ACCOUNTS OF CHEMICAL RESEARCH
发表日期: 2013-08-20
DOI: 10.1021/ar300361m
卷: 46, 期:8, 页:1740-1748
收录类别: SCI
合作性质: 
文章类型: Review
部门归属: 15,DNL20
项目归属: 1501,DNL2002
产权排名: 待补充
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
资助者: 1,1
研究领域[WOS]: Chemistry
英文摘要: Supported metal nanostructures are the most widely used type of heterogeneous catalyst in industrial processes. The size of metal particles is a key factor in determining the performance of such catalysts. In particular, because low-coordinated metal atoms often function as the catalytically active sites, the specific activity per metal atom usually increases with decreasing size of the metal particles. However, the surface free energy of metals increases significantly with decreasing particle size, promoting aggregation of small dusters. Using an appropriate support material that strongly interacts with the metal species prevents this aggregation, creating stable, finely dispersed metal dusters with a high catalytic activity, an approach industry has used for a long time. Nevertheless, practical supported metal catalysts are inhomogeneous and usually consist of a mixture of sizes from nanoparticles to subnanometer dusters. Such heterogeneity not only reduces the metal atom efficiency but also frequently leads to undesired side reactions. It also makes it extremely difficult, if not impossible, to uniquely identify and control the active sites of interest.
关键词[WOS]: CO OXIDATION ;  CARBON-MONOXIDE ;  SELECTIVE HYDROGENATION ;  GOLD NANOPARTICLES ;  ACTIVE-SITES ;  IN-SITU ;  METAL ;  CLUSTERS ;  SURFACE ;  AU
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000323472200009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/119296
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
3.Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA

Recommended Citation:
Yang, Xiao-Feng,Wang, Aiqin,Qiao, Botao,et al. Single-Atom Catalysts: A New Frontier in Heterogeneous Catalysis[J]. ACCOUNTS OF CHEMICAL RESEARCH,2013,46(8):1740-1748.
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